1-6 縮小画像を対象とした撮像カメラ識別における感度不均一性マップの再構成(第1部門 メディア工学1)

抄録

Discrimination based on the photo-response nonuniformity (PRNU) is a powerful method for source camera identification. However, strongly-shrinked images tend to degrade the performance of the algorithm. To deal with this problem, we propose a PRNU-map reconstruction method from multiple scaled images. Experimental results show the effectiveness for heavily scaled images.